From the Rib Collection. POLO's bikini briefs are cut in a high-rise silhouette and feature a rib-knit design. This comfortable style is finished with a wide elasticized logo waistband. Elasticized waistband Pulls on 64% lyocell/32% polyamide/4% elastane Waistband: 53% lyocell/35% polyamide/10% elastane/2% other fibers Hand wash Imported SIZE & FIT Leg opening, about 19" Model measurements: 5'10" tall Model is wearing a US size Small. Lingerie - Modern Sleepwear > Polo Ralph Lauren > Saks Fifth Avenue > Barneys. Polo Ralph Lauren. Color: Navy. Size: XS.